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These Statistics Calculators are part of the suite of free online math calculators designed and maintained by iCalculator. Please choose one of the statistics calculators from the selection below. If you are looking for a bespoke statistics calculator for a certain statistics calculation that is not featured in our suite of statistics calculators, please contact us and we will build the statistics calculator and add it to our suite for you and our other communities free use online.

Statistics can be defined as the practice, math or science of collecting and analysing data in large quantities with the aim of identifying common elements and math ratios and relationships to provide representational analysis, reports and equations..

- Statistics calculator and Graph Generator
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p-value | The p-value is a quantitative measure used for the reporting the results of statistical hypothesis testing. |
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t-value | The t-value is a test statistic that is the result of a statistical test. |

z-value | The z-value or z-score is a value's relationship to the mean of a group of values. |

Degrees of Freedom | Degrees of Freedom is the number of values in the final calculation of a statistic that are free to vary. |

Significance Level | The significance level is the criterion used for rejecting the null hypothesis |

Null Hypothesis | The Null Hypothesis is the hypothesis that there is no significant difference between specified populations, any observed difference being due to sampling or experimental error. |

Test Statistic | A test statistic is a quantity, derived from the sample, used in statistical hypothesis testing |

t-test | A t-test is typically used in small samples when the test statistic of the population follows a normal distribution |

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